Opel gasoline straight-4 1.6 L X 16 SZR engines

Opel gasoline straight-4 1.6 L X 16 SZR 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine

It's an 1598 cc (1.41 UK qt.) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 79 mm × 81.5 mm (3.11 in × 3.21 in). This engine was rated 55 kW (73.76 hp) at 5200 rpm and 128 N⋅m (94.41 lbf⋅ft) of torque at 2800 rpm.